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lambda

lambda

12 7.7
The 11th letter of the Greek alphabet written as Λ or λ used in math and physics
  • noun
  • /ˈlæmbdə/
  • Specialized
translation icon : lambda
  • So here Lambda is the Compton wavelength, H is Planck's constant, and C is the speed of light.
  • Wilks' lambda
  • lambda =
  • lambda = 0

A positive Lambda makes the expansion speed up.

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Examples

  • The Greek letter lambda is used in mathematics to denote eigenvalues.

  • Physicists use the symbol Lambda for wavelength.

  • A positive Lambda makes the expansion speed up.

  • And the shorthand term for the dark energy is Lambda, the Greek letter Lambda.

  • A second statistic displayed for the reader is Wilk's lambda, sometimes called the U statistic.

    Academic text (1991)
  • In physics, the symbol lambda represents wavelength in calculations.

  • In astrophysics, lambda is often associated with dark energy in the universe.

Compounds

lambda hyperon
  • Specialized
9.9

A tiny neutral particle made of three quarks that contains a strange quark

lambda particle
  • Specialized
9.9

A neutral particle made of three quarks that appears in particle physics

Trimorphodon lambda
  • Specialized
9.9

A desert snake from southwestern North America that is not venomous and has a V-shaped mark on its head

Surface Forms

lambda singular
lambdas plural

Etymology

Lambda comes from Greek and before that from an old Semitic word lamed meaning 'goad', but an easy way to remember it is that lambda is the Greek letter for the 'L' sound and its shape like an upside-down 'V' is used in science to mark things like wavelength and eigenvalues.